20111202340001 has 16 divisors (see below), whose sum is σ = 21708484704000. Its totient is φ = 18563166106368.

The previous prime is 20111202339973. The next prime is 20111202340003. The reversal of 20111202340001 is 10004320211102.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20111202340001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20111202340003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50051015 + ... + 50451228.

It is an arithmetic number, because the mean of its divisors is an integer number (1356780294000).

Almost surely, 2^{20111202340001} is an apocalyptic number.

It is an amenable number.

20111202340001 is a deficient number, since it is larger than the sum of its proper divisors (1597282363999).

20111202340001 is a wasteful number, since it uses less digits than its factorization.

20111202340001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100502488.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 20111202340001 its reverse (10004320211102), we get a palindrome (30115522551103).

The spelling of 20111202340001 in words is "twenty trillion, one hundred eleven billion, two hundred two million, three hundred forty thousand, one".